PRETTY AMETHYST QUARTZ CRYSTAL ON OTHER CRYSTALS AND MATRIX. CURIOUS CRYSTALLIZATION, TOTALLY TRANSPARENT (TYPICAL ROCK CRYSTAL) AND IN ACCORDANCE WITH THE MATRIX, WE GET THE SHADE TO THE TYPICAL COLOR OF THE AMETHYST. SIZE:
Quartz is the most common mineral, the most abundant that can be found on earth.
It is composed of silicon and oxygen with SiO₂ formula.
According to the Nickel-Strunz classification, quartz belongs to the class of oxides, while in the Dana classification, it is considered a tectosilicate.
There are multiple varieties of quartz , colors and types.
